6622606261 has 4 divisors (see below), whose sum is σ = 6706436800. Its totient is φ = 6538775724.

The previous prime is 6622606247. The next prime is 6622606301. The reversal of 6622606261 is 1626062266.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1626062266 = 2 ⋅813031133.

It is a cyclic number.

It is not a de Polignac number, because 6622606261 - 2⁹ = 6622605749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6622606261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622606231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41915151 + ... + 41915308.

It is an arithmetic number, because the mean of its divisors is an integer number (1676609200).

Almost surely, 2^6622606261 is an apocalyptic number.

It is an amenable number.

6622606261 is a deficient number, since it is larger than the sum of its proper divisors (83830539).

6622606261 is an equidigital number, since it uses as much as digits as its factorization.

6622606261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83830538.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 6622606261 is about 81379.3970302066. The cubic root of 6622606261 is about 1877.9166469001.

The spelling of 6622606261 in words is "six billion, six hundred twenty-two million, six hundred six thousand, two hundred sixty-one".